Which phrase is an example of what electrostatic forces hold together?

a. fr atoms and localized in iron

b. he atoms in helium gas

c. oxygen and hydrogen atoms in oh-

d. na+ and br- in nabr

i'm not sure about this one.

A. Fr atoms and localized in iron

Explanation:

The electrostatic force holds electrons and protons together in atoms and allows the atoms of different elements to bond together to form new substances. It is also responsible for the solidity of solid objects.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.